I am using ccmp and now when I enabled also tkip, I can see the messages like this in my dmseg: Invalid packet for Michael MIC add (tailroom=4 hdr_len=24 skb->len=1348) wifi0: TX - encryption failed Can be related to this: http://lists.shmoo.com/pipermail/hostap/2007-January/014941.html What happened to that patch? Is that patch proper fix? -- Best Regards, Jar